A smart lock cylinder

Abstract

The present invention discloses a smart lock cylinder, comprising a lock shell, a lock core, and a locking mechanism. A first rotating component including a lock core, a second rotating component, a dial sleeve, and a tail scale component are axially arranged in sequence from the front end to the rear end of the lock shell. The tail scale component includes a tail scale rotating part and a tail scale. The first rotating component has an axis O-O, and the second rotating component, the dial sleeve, and the tail scale rotating part have the same axis O1-O1. The axis O-O is parallel to the axis O1-O1. An axial moving part and a dial sleeve clutch part are arranged on the second rotating component. When locking, the first rotating component is separated from the second rotating component, and the dial sleeve clutch part is combined with the dial sleeve and the tail scale rotating part. After the lock core is rotated, the first rotating component contacts the axial moving part, and the axial moving part is axially moved and pushes the dial sleeve clutch part to separate from the dial sleeve. The lock core is continuously rotated, and the first rotating component is combined with the second rotating component.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, in particular to a smart lock cylinder. Background Art

[0002] The current ways to unlock the door through the lock core of smart lock fingerprint, magnetic card, password lock, etc. are: first, the intelligent control system controls the motor to drive the tail scale assembly to rotate, the tail scale assembly is matched with the dial sleeve, and the dial sleeve rotates with the tail scale assembly, thereby realizing automatic unlocking; the second is to manually unlock the door with a key outside. In addition, the principle of unlocking with the handle inside the door is the same as that of electric unlocking, both of which drive the tail scale to rotate and unlock. However, the lock core structure of the prior art has certain defects. Once someone inserts a foreign object into the keyhole, it is not only difficult to remove or repair it later, but the inserted foreign object may cause the tail scale assembly to separate from the dial sleeve, and it is impossible to realize automatic unlocking or unlocking inside the door; or because the key is forgotten, the inserted key will also cause the tail scale assembly to separate from the dial sleeve, and it is impossible to unlock automatically. To solve this technical problem, a Chinese invention patent with a publication number of 110670954A, published on January 10, 2020, discloses a lock core, including a lock shell, a lock core in the lock shell, a locking mechanism arranged on the lock shell and the core, a dial sleeve, a tail scale assembly axially arranged at the rear of the lock shell and capable of being separated or engaged with the dial sleeve, and a lock core clutch assembly axially arranged at the rear of the lock core and capable of being separated or engaged with the dial sleeve, wherein the lock shell has a lock core cavity for accommodating the lock core, a keyhole is provided on the lock core, and a clutch limit assembly is axially arranged between the lock core clutch assembly and the keyhole, when the key is inserted into the keyhole to unlock the locking mechanism, the key is turned, and the clutch limit assembly can be axially displaced in the lock core, and can push the lock core clutch assembly to engage with the dial sleeve, and at the same time push the tail scale assembly to separate from the dial sleeve. The lock core of this structure can prevent foreign matter from entering the deep part of the lock core, and can also prevent the situation where the lock core cannot be unlocked due to idling by automatic unlocking when the key is not pulled out. However, since this structure has a limit groove in the shape of a polygon along the axial direction on the lock shell, the pin shaft will get stuck if it does not slide smoothly in the limit groove. On the other hand, since the tail scale assembly and the dial sleeve need to be aligned when they are matched, when the positions are not aligned, the tail scale assembly and the dial sleeve cannot be matched with the tail scale assembly, and idling will occur, resulting in failure to unlock the door electrically or open the door with the handle inside the door. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a smart lock cylinder which can still be unlocked from inside the door even if the key is forgotten or a foreign object enters the lock cylinder, and can solve the problem of the lock being stuck.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A smart lock cylinder comprises a lock shell, a lock core and a locking mechanism. A first rotating component including the lock core, a second rotating component, a pull sleeve and a tail scale component are axially arranged in sequence from the front end to the rear end of the lock shell. The tail scale component comprises a tail scale rotating part and a tail scale. The first rotating component has an axis OO, and the second rotating component, the pull sleeve and the tail scale rotating part have the same axis O1-O1. The axis OO is parallel to the axis O1-O1. An axial moving part and a pull sleeve clutch part are arranged on the second rotating component. When locking, the first rotating component is separated from the second rotating component, and the pull sleeve clutch part is combined with the pull sleeve and the tail scale rotating part. After rotating the lock core, the first rotating component contacts the axial moving part, and causes the axial moving part to move axially and push the pull sleeve clutch part to separate from the pull sleeve. The lock core continues to be rotated, and the first rotating component is combined with the second rotating component.

[0006] The axis OO is located above the axis O1 - O1 along the longitudinal direction of the lock housing.

[0007] The first rotating assembly also includes a clutch puller, one axial end of the clutch puller is fixedly connected to the lock core, and the other end is provided with an active part, the second rotating assembly includes a clutch sleeve, one axial end of the clutch sleeve is provided with a driven member, and the other end is provided with a push clutch cavity, the push clutch cavity is connected to the pull sleeve, the axial moving part is sleeved in the push clutch cavity, the axial moving part is a clutch pusher, one axial end of the clutch pusher is provided with a sliding part, and the other end is provided with a pushing part, the sliding part passes through the bottom of the clutch sleeve and can be in rotational contact with the active part of the clutch puller, the pull sleeve clutch part is a clutch rotating part, which is arranged in the tail scale rotating part and can make axial movement on the tail scale rotating part, and can rotate with the rotation of the tail scale rotating part, a reset spring is also arranged in the tail scale rotating part, one axial end of the clutch rotating part abuts on the reset spring, and the other end abuts on the pushing part, and a limiting part for the axial sliding of the clutch rotating part and driving the clutch rotating part to rotate is arranged in the pull sleeve.

[0008] The bottom of the push clutch cavity is provided with a plurality of through holes, and the sliding part is a corresponding number of convex parts with inclined surfaces.

[0009] The number of the through holes is or , which are symmetrically arranged on the pushing clutch cavity. Correspondingly, the protrusions are symmetrically arranged on the clutch pushing member.

[0010] The driven member is two opposite convex columns.

[0011] The active part of the clutch puller is a linear card.

[0012] The beneficial effects of the present invention are as follows: compared with the prior art, when locked, since the first rotating component is separated from the second rotating component, the lock core will not restrict the rotation of the tail scale component, the second rotating component is matched with the dial sleeve, the dial sleeve is matched with the tail scale rotating piece, and the door handle is turned or the electric unlocking is performed to unlock the door; and when the door is unlocked with a key outside, the lock core is turned. Due to the different axes, the first rotating component will not contact the second rotating component until it rotates a certain angle, and the axial moving part in the second rotating component moves axially and pushes the dial sleeve clutch part to separate from the dial sleeve, thereby separating the dial sleeve from the tail scale rotating piece, and the lock core is continuously rotated, and the first rotating component drives the dial sleeve to rotate to unlock the door. This structure rotates more smoothly without jamming, solves the reset problem of the dial sleeve clutch part, and can be flexibly designed to unlock at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the structural decomposition of the present invention;

[0015] Figure 2 This is a state diagram of the present invention when the key is inserted but not yet turned;

[0016] Figure 3 yes Figure 2 AA section view;

[0017] Figure 4 This is a state diagram of the present invention when the key is inserted and rotated a certain angle to reach the unlocking state;

[0018] Figure 5 yes Figure 4 BB section view;

[0019] Figure 6 yes Figure 4 CC section view of ;

[0020] Figure 7 It is the front view of the clutch puller;

[0021] Figure 8 yes Figure 7 Left view of;

[0022] Fig. 9 It is a three-dimensional diagram of the clutch sleeve;

[0023] Fig.10 It is the front view of the clutch sleeve;

[0024] Fig.11 yes Fig.10 Right view of;

[0025] Fig.12 is a front view of the clutch pusher;

[0026] Fig.13 It is the main view of the dial sleeve;

[0027] Fig.14 yes Fig.13 DD section view;

[0028] Fig.15 yes Fig.13 Rear view of. DETAILED DESCRIPTION

[0029] Reference Figures 1 to 15 The intelligent lock cylinder of the present invention comprises a lock shell 1, a lock core 2, and a locking mechanism 3. A first rotating assembly including the lock core 2, a second rotating assembly, a pull sleeve 4, and a tail scale assembly 5 are sequentially axially arranged from the front end 11 of the lock shell to the rear end 12 of the lock shell. The tail scale assembly 5 comprises a tail scale rotating member 51 and a tail scale 52, and the tail scale rotating member 51 and the tail scale 52 are connected by a bayonet 513. The first rotating assembly has an axis OO, and the second rotating assembly, the pull sleeve, and the tail scale rotating member have the same axis O1-O1, and the axis OO is parallel to the axis O1-O1. The preferred solution is that the axis OO is located above the axis O1-O1 along the longitudinal direction of the lock shell. The second rotating assembly is provided with an axial moving part and a sleeve clutch part. When locked, the first rotating assembly is separated from the second rotating assembly, and the sleeve clutch part is engaged with the sleeve 4 and the tail scale rotating member 51. At this time, the door can be unlocked by a handle inside the door or by electric means. When unlocking with the key 200, after the lock core 2 is rotated, the first rotating assembly contacts the axial moving part, and the axial moving part is axially moved and pushes the sleeve clutch part to separate from the sleeve 4. The lock core 2 is continued to be rotated, and the first rotating assembly is engaged with the second rotating assembly, and the lock core 2 drives the sleeve 4 to rotate and unlock.

[0030] As a preferred solution, the first rotating assembly further comprises a clutch puller 6, one axial end of which is fixedly connected to the lock core 2, and such connection may be a screw connection or other conventional technical means. Figure 1 The present invention provides a groove 22 at the rear of the cylinder 2, and the shape of one axial end of the clutch puller 6 matches the shape of the groove 22, is inserted into the groove 22, and is connected by screws (not shown). When the cylinder 2 rotates, the clutch puller 6 can be driven to rotate. The other axial end of the clutch puller 6 is provided with an active part, which is preferably a linear card 61 and passes through the axis OO of the clutch puller 6. A further preferred solution is that the card 61 is asymmetrically arranged on the clutch puller 6, that is, see Figure 7 , Figure 8The distance between the E end of the card 61 and the edge 62 of the clutch puller 6 is different from the distance between the F end and the edge 62 of the clutch puller 6. This asymmetric structure is more conducive to the first rotating assembly and the second rotating assembly to contact after rotating a certain angle, and the structure is more compact. The second rotating assembly includes a clutch sleeve 7, an axial moving part and a sleeve clutch part.

[0031] A follower 71 is provided at one axial end of the clutch sleeve 7. The preferred embodiment of the follower 71 is two opposite convex columns 71A and 71B. The follower 71 is used for the card 61 to drive. The shape, number and distribution of the follower 71 determine how many degrees the key can be turned to unlock and the forward and reverse unlocking conditions. A push clutch cavity 72 is provided at the other axial end of the clutch sleeve 7. The push clutch cavity 72 is connected to the pull sleeve 4. The connection method of the present invention is snap connection. A card slot 73 is provided at the end of the push clutch cavity 72. Correspondingly, a card block 41 is provided in the pull sleeve 4. The card block 41 is inserted into the card slot 73. Preferably, there are two card slots 73. Correspondingly, there are also two card blocks 41, so that the rotation is more balanced. The connection between the clutch sleeve 7 and the pull sleeve 4 can also be other conventional technical means, not limited to the connection method of the present invention. The axial moving part is inserted into the pushing clutch cavity 72, and the axial moving part is a clutch pusher 8, which is inserted into the pushing clutch cavity 72. The clutch pusher 8 is provided with a sliding part at one axial end and a pushing part 82 at the other end. The sliding part passes through the clutch sleeve 7 and can be in rotational contact with the card 61 of the clutch puller 6. The pull sleeve clutch part is a clutch rotating part 9, which is arranged in the tail scale rotating part 5 and can make axial movement on the tail scale rotating part 51, and can rotate with the tail scale rotating part 5, but no matter how the clutch rotating part 9 moves axially, it will not completely separate from the tail scale rotating part 51. The preferred structure may be that a cavity 511 is axially arranged at one end of the tail scale rotating member 51 away from the tail scale, and a notch 512 is arranged at the end of the cavity 511, and the notch 512 cooperates with the boss 91 on the clutch rotating member 9, and the notch 512 can accommodate the boss 91 of the clutch rotating member 9 so that the clutch rotating member 9 is separated from the restriction of the pull sleeve 4. The pull sleeve 4 is provided with a limiting part for the axial sliding of the clutch rotating member 9 and can drive the clutch rotating member 9 to rotate. The preferred structure of the limiting part is a space 42 with a groove 43, and the shape of the space 42 is the same as that of the clutch rotating member 9. The boss 91 is inserted into the groove 43 and can slide therein, that is, the clutch rotating member 9 is either partially inserted into the notch 512 and partially inserted into the groove 43 of the pull sleeve 4, or the whole part falls into the notch 512 and completely separated from the groove 43 of the pull sleeve 4. A return spring is also provided in the tail scale rotating member 51 . Specifically, a return spring 10 is provided in the cavity 511 , one axial end of the clutch rotating member 9 abuts against the return spring 10 , and the other end abuts against the pushing portion 82 .

[0032] In order to achieve the purpose of compact structure and smooth rotation, the sliding part of the present invention is preferably a plurality of convex parts 81 with inclined surfaces 811, and the number of the convex parts 81 is preferably 2 or 4, which are symmetrically arranged on the clutch pusher 8. Correspondingly, the bottom of the push clutch cavity 72 is provided with through holes 74 with the same number as the convex parts 81, which are symmetrically arranged on the push clutch cavity 72, so that the lock body can achieve balance when rotating. The convex parts 81 extend from the through holes 74. The main function of the sliding part is to make axial movement after contacting the active part under the action of the active part, so that the sliding part retracts and does not prevent the lock from continuing to rotate. Therefore, as long as the sliding part is a structure with such a function, it is within the protection scope of the present invention, for example, the sliding part can also be a convex with an arc surface. The angle of the inclined surface 811 of the convex part 81 should be designed to meet the requirement that when the key is rotated to make the card 61 pass over the convex part 81, the clutch rotating part 9 is just pushed away from the groove 43 of the dial sleeve, and then out of the restriction of the tail scale rotating part 51. At this time, the key can be turned continuously to unlock.

[0033] In order to make the clutch pusher 8 move axially more smoothly in the clutch cavity 72, a slide groove 75 is provided in the clutch cavity 72, and a sliding ball 100 is provided on the clutch pusher 8. When the clutch pusher 8 moves axially, the sliding ball 100 slides in the slide groove 75. In order to make the sliding ball 100 easy to slide, two sliding balls are provided, and a spring 110 is provided between the two sliding balls 100.

[0034] In view of the situation that there are two groups of components that are not coaxial, in order to further make the structure compact and ingenious, a transition chamber 15 is provided on the lock housing 1, and the transition chamber 15 is located between the lock core chamber 13 and the pull sleeve space 14. The transition chamber is provided with a first chamber 151 and a second chamber 152. The first chamber 151 is used to install the lock core 2 and the clutch puller 6, and the second chamber 152 is used to install a part of the clutch sleeve 7, and the other part of the clutch sleeve is in the pull sleeve 4. The axes of the two chambers are not coaxial like the components contained therein, and are parallel to each other.

[0035] The working principle of the present invention is as follows:

[0036] 1. Working principle of automatic unlocking or door handle unlocking:

[0037] When the key 200 is not inserted into the key hole 21 or the key is inserted but not rotated, it is the locked state, see Figure 2-3, under the action of the return spring 10, the boss 91 of the clutch rotating member 9 is stuck in the groove 43 of the dial sleeve 4, and a part of the clutch rotating member 9 is also stuck in the notch 512 of the tail scale rotating member 51. At the same time, the clutch rotating member 9 pushes the clutch pusher 8 toward the lock core 2, and the convex part 81 of the clutch pusher 8 extends out of the clutch sleeve 7. At this time, the automatic unlocking mode is started or the inner door handle (not shown) is turned, the tail scale assembly 5 rotates, and then drives the dial sleeve 4 to rotate to unlock. Since the clutch sleeve 7, the shift sleeve 4 and the tail scale rotating member 51 are on the same axis O1-O1, and the clutch sleeve 7 is clamped on the clamping block 41 of the shift sleeve 4, when the shift sleeve 4 rotates, the clutch sleeve 7 and the clutch pushing member 8 in the clutch sleeve 7 are synchronously driven to rotate together. Since the lock core 2 does not rotate, at this time, the card 61 of the clutch puller 6 is stationary, and the rotation of the clutch sleeve 7 will not cause the convex columns 71A, 71B and the convex portion 81 on the clutch sleeve 7 to contact the card 61, so that the rotation of the shift sleeve 4 will not be restricted by the lock core 2, and the lock can be opened smoothly.

[0038] 2. Working principle of opening the door with a key:

[0039] After the key 200 is inserted and the key 200 is matched with the pin of the locking mechanism 3, the key is turned. Since the axis OO of the lock core 2 and the clutch puller 6 is not coaxial with the axis O1-O1 of the clutch sleeve 7, the pull sleeve 4 and the tail scale rotating member 51, and they are parallel, and the card 61 is asymmetric, when the card 61 rotates around the axis OO, the E end of the card 61 will not touch the protrusion 81, but when the F end rotates to the upper part of the clutch sleeve 7, the F end will contact the protrusion 81. Since the protrusion 81 has an inclined surface, when the card 61 rotates, the protrusion 81 is pressed to retract, and the protrusion 81 makes an axial movement, thereby pushing the clutch pusher 8 to move axially, and then pushing the clutch rotating member 9 to move axially in the direction of the tail scale 52, until the boss 91 of the clutch rotating member 9 is pushed away from the groove 43 in the pull sleeve 4, and the boss 91 enters the recess 512 of the tail scale rotating member 51. At this time, the F end has rotated to one of the protrusions 71A on the clutch sleeve 7 and touched the protrusion 71A. If the key is rotated further, the clutch sleeve 7 will be driven to rotate. Since the clutch sleeve 7 is engaged with the pull sleeve 4 and the clutch rotating member 9 has been separated from the pull sleeve 4, the key can be rotated further to drive the pull sleeve 4 to rotate and unlock (see Figure 4-6 ).

[0040] The upper part of the present invention refers to the upper and lower positions of the lock shell. The position of the lock core 2 in the lock shell 1 is the lower part of the lock shell, and the part without the lock core is the upper part. The above implementation methods cannot limit the protection scope of the present invention. The equivalent modifications and changes made by professionals in the professional and technical field without departing from the overall concept of the present invention are still within the scope of the present invention.

Claims

1. A smart lock cylinder, comprising a lock housing (1), a lock core (2), and a locking mechanism (3), characterized in that: A first rotating assembly including the lock core (2), a second rotating assembly, a shifting sleeve (4) and a tail scale assembly (5) are axially arranged in sequence from the front end (11) of the lock housing to the rear end (12) of the lock housing. The tail scale assembly (5) includes a tail scale rotating part (51) and a tail scale (52). The first rotating assembly has an axis OO. The second rotating assembly, the shifting sleeve (4) and the tail scale rotating part (51) have the same axis O1-O1. The axis OO is parallel to the axis O1-O1. The second rotating assembly is provided with an axial moving part and a shifting sleeve clutch part. When locked, the first rotating assembly is separated from the second rotating assembly. The sleeve clutch part is matched with the sleeve (4) and the tail scale rotating part (51); after the lock core (2) is rotated, the first rotating component contacts the axial moving part, and causes the axial moving part to move axially and push the sleeve clutch part to separate from the sleeve (4), and the lock core (2) is continuously rotated, and the first rotating component is matched with the second rotating component; the first rotating component also includes a clutch puller (6), one axial end of the clutch puller (6) is fixedly connected to the lock core (2), and the other end is provided with an active part, and the second rotating component includes a clutch sleeve (7), an axial A driven member (71) is arranged at one end, and a push clutch cavity (72) is arranged at the other end. The push clutch cavity (72) is connected to the pull sleeve (4). The axial moving part is inserted into the push clutch cavity (72). The axial moving part is a clutch pusher (8). A sliding part is arranged at one axial end of the clutch pusher (8), and a pushing part (82) is arranged at the other end. The sliding part passes through the bottom of the clutch sleeve (7) and can be in rotational contact with the active part of the clutch puller (6). The pull sleeve clutch part is a clutch rotating part (9), which is arranged in the tail scale rotating part (51) and can make axial movement on the tail scale rotating part (51). , and can rotate along with the tail scale rotating member (51); a return spring (10) is further provided in the tail scale rotating member (51); one axial end of the clutch rotating member (9) abuts against the return spring (10), and the other end abuts against the pushing portion (82); a limiting portion is provided in the pull sleeve (4) for the clutch rotating member (9) to slide axially and can drive the clutch rotating member (9) to rotate; a plurality of through holes (74) are provided at the bottom of the pushing clutch cavity (72); the sliding portion is a corresponding number of convex portions (81) with inclined surfaces (811); and the driven member (71) is two opposite convex columns (71A, 71B).

2. The smart lock cylinder according to claim 1, characterized in that: The axis OO is located above the axis O1 - O1 along the longitudinal direction of the lock housing.

3. The smart lock cylinder according to claim 1 or 2, characterized in that: The number of the through holes (74) is 2 or 4, and they are symmetrically arranged on the pushing clutch cavity (72). Correspondingly, the convex parts (81) are symmetrically arranged on the clutch pushing member (8).

4. The smart lock cylinder according to claim 1 or 2, characterized in that: The active part of the clutch puller (6) is a linear card (61).

5. The smart lock cylinder according to claim 4, characterized in that: The card (61) is asymmetrically radially arranged on the clutch puller (6).

6. The smart lock cylinder according to claim 1 or 2, characterized in that: A sliding groove (75) is axially arranged in the pushing clutch cavity (72), and a sliding ball (100) matching with the sliding groove (75) is arranged on the clutch pushing member (8).

7. The smart lock cylinder according to claim 1 or 2, characterized in that: The lock housing (1) is provided with a transition chamber (15), and the transition chamber (15) is located between the lock core chamber (13) and the sleeve space (14). The transition chamber (15) is provided with a first chamber (151) and a second chamber (152). The first chamber (151) is used to install the tail part of the lock core (2) and the clutch puller (6), and the second chamber (152) is used to install at least a part of the clutch sleeve (7).

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